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The objective of the study was to determine the effect of three different biochars (Pin, Poplar, and Oak biochars), four different biochar doses (0, 1, 2, and 4%), and four different nitrogen rates (0, 70, 140, and 210 mg kg-1) on soil fertility, growth, and nutrient uptake of corn plants. The experiment was conducted in a greenhouse, and corn (Zea mays L.) was used as the test plant. The biochar types, biochar doses, and nitrogen rates significantly affected many soil and plant parameters. The highest leaf dry matter yield was obtained with a combination of the poplar biochar, 4% biochar dose, and 140 mg kg-1 N application.

Effect of Biochar and Nitrogen Applications on Growth of Corn (Zea mays L.) Plants